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Finding the Fourth Proportional to 111,289.96, 166,899.70 and 36,392.80

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Solution

The fourth proportional to 111,289.96, 166,899.70 and 36,392.80 is: 54,577.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,289.96 : 166,899.70 = 36,392.80 : x
  2. Step 2: Convert to fraction form
    111,289.96/166,899.70 = 36,392.80/x
  3. Step 3: Cross multiply
    111,289.96x = 166,899.70 × 36,392.80
  4. Step 4: Simplify right side
    111,289.96x = 6,073,947,402.16
  5. Step 5: Solve for x
    x = 6,073,947,402.16/111,289.96
  6. Step 6: Final answer
    x = 54,577.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.